1. H99.36.47 Object number: H99.36.47 Object name: photonegative Maker: Robert Duffield Vawter Date made: circa 1943
2. H99.36.98 Object number: H99.36.98 Object name: color transparency Maker: Robert Duffield Vawter Date made: 1942-1943
3. H99.36.99 Object number: H99.36.99 Object name: color transparency Maker: Robert Duffield Vawter Date made: 1942-1943
4. H99.36.100 Object number: H99.36.100 Object name: color transparency Maker: Robert Duffield Vawter Date made: 1942-1943
