The map sheet to which the appendices belong:

11838888 @ Военно-топографическая карта европейской России 1:126 000 | map file: VTK_Ryad_XX_List_1_ca_1900_nnvtVd5_BN_Sygn.ZZK_S-31_668_A.jpg file size: 38206729 (36.4 MB) sheet number: XX 1 map sheet scale 1:126000 sheet title: publication year: ± 1900 scan resolution: 600 dpi scan colors: rgb file added: 2021-12-06

The appendices:

Appendix 1 (id 1761210) :
file nameVTK_Ryad_XX_List_1_ca_1900_nnvtVd5_BN_Sygn.ZZK_S-31_668_A_0001.jpg
file size30858351 (29.4 MB)
appendix titleverso
publication year± 1900
entry edited2021-12-06 08:59:22
file added2021-12-06