Country

•  Africa (11)
•  Algeria (62)
•  Andorra (2)
•  Angola (2)
•  Argentina (15)
•  Australia (68)
•  Austria (1)
•  Belgian Congo (12)
•  Belgium (46)
•  Bolivia (6)
•  Brazil (13)
•  Bulgaria (4)
•  Burma (2)
•  Cambodia (1)
•  Canada (29)
•  Chili (23)
•  China (9)
•  Colombia (16)
•  Congo (19)
•  Czekoslovakia (3)
•  Dominican Republic (1)
•  East Africa (2)
•  Ecuador (1)
•  Egypt (1)
•  Ethiopia (4)
•  Finland (1)
•  France (640)
•  Germany (8)
•  Gold Coast (Ghana) (11)
•  Great Britain (42)
•  Greece (8)
•  Guiana (26)
•  Guinea (18)
•  Honduras (2)
•  Hungary (10)
•  India (6)
•  Indochina (59)
•  Indonesia (1)
•  Italy (20)
•  Ivory Coast (18)
•  Laos (4)
•  Madagascar (35)
•  Malaysia (8)
•  Mexico (93)
•  Morocco (53)
•  Mozambique (5)
•  New-Caledonia (8)
•  New-Zealand (2)
•  New Hebrides (4)
•  Nigeria (13)
•  Norway (1)
•  Panama (5)
•  Peru (11)
•  Poland (5)
•  Portugal (14)
•  Romania (12)
•  Russia (81)
•  Salvador (1)
•  Senegal (3)
•  Serbia (9)
•  Siam (3)
•  Somalia (1)
•  South Africa (138)
•  Spain (122)
•  Sweden (2)
•  Switzerland (12)
•  The Netherlands (4)
•  Tunisia (33)
•  Turkey (10)
•  Ukrain (1)
•  Uruguay (8)
•  USA (133)
•  Venezuela (25)
•  Vietnam (2)
•  West Indies & Caraibean (1)
•  Yugoslavia (4)

Theme

•  Mines : coal (1)
•  Mines and quarries (2)