 | Saltpeter: The Mother Of Gunpowder By Cressy |  |  | $80.99 | $6.99 | | US | 21d 23h 51m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,27 | | | $8.99 | $2.49 | | US | 22d 1h 37m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,29 | | | $8.99 | $2.49 | | US | 22d 1h 39m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,1 | | | $8.99 | $2.49 | | US | 22d 1h 39m |
 | Vintage Postcard Saltpeter Cave Natural Bridge Virginia Fresh Linen Card | | | $6.99 | $1.95 | | CA | 22d 3h 34m |
 | Saltpeter Cave Natural Bridge State Park Virginia Linen Postcard | | | $5.69 | $1.55 | | US | 22d 3h 37m |
 | Natural Bridge, Virginia Va ~ Saltpeter Cave 1940S L748 | | | $5.75 | $1.50 | | US | 22d 3h 46m |
 | Postcard Saltpeter Vats + Amphitheater Mammoth Cave National Park, Kentucky D129 | | | $6.97 | $0.00 | | US | 22d 3h 59m |
 | Saltpeter Cave Natural Bridge Virginia Va Rockbridge County Blue Ridge Postcard | | | $5.00 | $0.00 | | US | 22d 4h 12m |
 | The Preservaline Manufacturing Company For Electric Saltpeter. Brand Saltpeter | | | $9.99 | $4.49 | | US | 22d 7h 13m |
 | 5 Decrets 1793-1794 : Poudre Et Salpêtre | | | $62.22 | $8.30 | | FR | 22d 14h 35m |
 | Chile 1940-46 Sc.O45 20C Light Blue Saltpeter Oficial Mnh Watermarked | | | $9.99 | $5.00 | | CL | 22d 14h 58m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,22 | | | $8.99 | $2.49 | | US | 22d 19h 35m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,2 | | | $8.99 | $2.49 | | US | 22d 19h 37m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,19 | | | $8.99 | $2.49 | | US | 22d 19h 41m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,17 | | | $8.99 | $2.49 | | US | 22d 19h 47m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,3 | | | $8.99 | $2.49 | | US | 22d 19h 48m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,16 | | | $8.99 | $2.49 | | US | 22d 21h 26m |
 | Mammoth Cave Saltpeter Works,Mammoth Cave,Edmonson County,Ky,Kentucky,Habs,24 | | | $8.99 | $2.49 | | US | 22d 21h 35m |
 | K398q?Novelty "Fertilizer For Fruit Trees" Chiri Saltpeter Promotion Ass #Pg1y4u | | | $82.14 | $0.00 | | JP | 23d 1h 23m |