Part of a series of 28 endangered species charity pins sold at cafes in North America in 2011. Each pin benefits a local member of the Association of Zoos and Aquariums (AZA). Each pin is a horizontal guitar with a zoo or aquarium species on the body and a local zoo or aquarium logo dangling from the headstock.
Baltimore pin is a horizontal guitar with a green leaf guitar with a yellow and black poison arrow frog sitting on the leaf on the body. Dangling from the headstock is a logo of the S Maryland Zoo of Baltimore. Back of pin has "Limited Edition" but no count is given.
Base material: Gold appearance
Back print: 5 lines
Back pattern: Hard Rock Cafe logos, guitars and microphones
Distribution method: Retail
Release date: 2011
Original retail price: $14 USD