New material may be listed in any section, not just in the last section of a category.
ADAMS RUN / S.C . // AUG / 12 PAID (no rate) to "Mrs. J.B. Grimball, Spartanburg, So. Carolina", slightly reduced at top with top back flap missing, Very Fine, Ex Zimmerman.
John Berkley Grimball (1800-1892), The Grimballs were prominent planters and owners of Pinebury and Grove plantations near Charleston, SC. Their well-known correspondence is in the University of North Carolina at Chapel Hill and particularly known to postal historians for blockade-run covers.
"Zeno, SC July 12th  Paid 5" all in manuscript on cover to Williams Mills, NC, slightly reduced at right, Scarce and attractive. Rarity 8 on the SC towns scale.
GREENVILLE C.H. / S.C., Oct 1 , double circle postmark with inverted date and handstamped "Paid 5", type IA, on immaculate cover to "James Hagood, Esq., CCP, Pickens, S.C.", Very Fine, Ex Wm. A. Fox.
Zeno, S.C., Nov 15th (1861), manuscript postmark with matching "Pd 5" rate on small embossed ladies cover to Miss Violet A. Sifford, Catawba Springs, small edge tear at top, Very Fine, town is Rarity 8, Ex Wm. A. Fox.
Zeno, S.C., April 17th, manuscript postmark with matching "Paid 10" rate on small buff homemade cover to Killians Mills, N.C., Very Fine, town is Rarity 8.
COLUMBIA / S.C. handstamped PAID 10 bold neat strikes in blue on pale green homemade cover to Greenwood, So. Ca., ms “Charge Key Box 75 CW S.C. R.R. A”, signed Dietz on back with part of top back flap missing.
CHARLESTON / S.C. // AUG / 19 / 1861 double circle cancel with handstamped PAID 5 in circle, type III, addressed to “J. E. Hagood, Esq, Pickens C.H., S.C.” Bio of Col. James Earle Hagood accompanies. Fresh, Very Fine.
Green Pond, SC manuscript cancel with matching “Due 10” on small homemade soldier’s cover addressed to "Miss Sue Louisa Reeder, Manning, So. Ca." and “Care W. B. Reeder, Esq.” at lower left with “Soldier’s Letter” endorsement but no name/rank contrary to mandate to do so. Luckily, it is a turned use with a MANNING / SC / SEP / 16 (1862) cds and handstamped PAID10, type I (this alone cats $140 in out of date 1986 New Dietz) addressed to "Mr. William Reeder, Palmetto Guard Artillery, Green Pond, So Ca". The sender endorsed "Care of Capt. Webb”. William Reeder is listed as having served in "A" Co. Wonderful soldier’s turned adversity use with full flaps intact. Ex Sam Zimmerman. $400.
GEORGETOWN / S.C. // JUL / 17 / 1861 cds with matching handstamped PAID 10 to Col. A. P. Calhoun, Richmond, Virginia. A[ndrew].P. Calhoun (1812-1865) was the son of the famous pro-slavery Southern statesman John C. Calhoun, whose portrait appears on the Confederate 1¢ Orange CSA 14 stamp. $200.
SOCIETY HILL / S.C. // JAN // 11  cds with matching PAID / 5 (ms.) (type A, CV $200) on folded letter to Messrs F&H Fries, Salem, N.C. with a request from C. Coker & Brother to said textile firm for more yardage and enclosed a check for $2,005. The Coker general store was established in 1828 by Caleb Coker, Jr. and Eli Gregg, the latter leaving in 1839. Photo of the store included along with more info. Ex Kathleen Staples. $200.
MANNING S.C. MAR 6 circular datestamp with matching PAID. 10 (CC type A, CV $250) on homemade cover made of thick paper, to Major T.B. Fraser, Sumter, S.C. with clipped letter heading “Manning SC March 5th 1864.” $150.
BLACK MINGO S.C. JAN 3 cds, beautiful bold strike of this BALLOON postmark with matching PAID (no rate – CSA Catalog Type A, CV $350) on fresh TURNED COVER to Miss Emelia Henning, Darlington C.H., S.C.; inside franked with CSA 11c, 10¢ bluish green tied somewhat blurry DARLINGTON C.H. / S.C. cds, to Miss Eliza Greene, Black Mingo, SC; sealed flap tears. A Beauty! $450. Listed in SC Stampless-1 and CSA 11 Covers, Section 2
FLORENCE S.C. PAID (CC type A, CV $250), no rate, on homemade cover fashioned from pale blue lined paper, addressed to Gen. W.W. Harllee, Columbia, S.C. Manuscript "Pd. J N MC" at top left. $180.
William Wallace Harllee bio on linked page.
CAMDEN SC DEC (1864) indistinct circular datestamp with matching light PAID 10 in circle that matches CSA Catalog type E; adversity cover fashioned from New York legal form or checks (click to see verso) and addressed to Mrs. Adéle Allston, Extr (executrix) of R.F.W. Allston, Society Hill, S.C. with docketing up left side “Mrs. Kershaw 19 Dec” ad pencil docketing Dec 16, 1864. Maj. Gen. Joseph B. Kershaw was from Camden and the letter was likely from his wife as Kershaw was similar South Carolina elite. $250.
Robert Francis Withers Allston was the 67th governor of South Carolina. Short bio on linked page.
CHARLESTON S.C. APR 24 186- circular datestamp with soldier‘s (due) 10 on fresh cover to Josiah M. Barkley Williamston Anderson Dist(rict) So Ca; with mandated endorsement of M.V. Barkley, Co. D, 18th S.C.V. $110.