V.P.N. Numbers designate materials from Northern Venezuela (Northern Venezuelan Petroleum Company), often indicated on sample bags. VPN numbers go up to about 5000.

 

Blue digits indicate locality numbers, red digits refer to species numbers of A. Senn.

There is a complete N.V.P. card catalogue compiled by A. Senn, which is located in a metal box together with the "old" mollusk collection from Venezuela, Kasten No. 302-303 [="Non Gibbson Smith Venezuela Collection"], on the floor of Ex Peter Jung office.