M0006038: Pre Cambian rocks of the Grand Canyon
- Date:
- 14 January 1939
- Reference:
- WT/D/1/20/1/50/39
Licence: In copyright
Credit: M0006038: Pre Cambian rocks of the Grand Canyon. Source: Wellcome Collection.
Licence: In copyright
Credit: M0006038: Pre Cambian rocks of the Grand Canyon. Source: Wellcome Collection.
