A Very difficult to achieve professional Museum Display Dissection Showing the INFLATED Swim- Bladder in a Roach. Gerrard Label to the rear dates this to the 1950's. This preparation took great skill to present without damaging the Swim Bladder. The specimen is in outstanding condition as can be seen in the images.The item "Fish Preserved Specimen Dissection T. Gerrard & Co Roach Swim Bladder" is in sale since Monday, June 8, 2020. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "houseofvega" and is located in Newcastle Under Lyme, Staffordshire. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.