lot of four PORTER SCIENCE ads ~ 1935-1960 ~ microscopes, chemistry sets For Sale
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lot of four PORTER SCIENCE ads ~ 1935-1960 ~ microscopes, chemistry sets: $11.66
These magazine ads (which measure between about 2.5x4 and 3x4.5 inches) have some general wear, but it\'s still a cool assortment! Not photocopies or more recent reproductions.