Heres a product from 1996 Firecom invented the “Pull Plus” was designed to lower the height of existing pull handles to meet ADA requirements without physical relocation of the pull station but its pretty interesting.
it was designed to be used with Edwards,Gamewell,Simplex,Faraday,Ceberus Pyrotronics,Mirtone pull stations at the time.
i have linked the patent for this device bellow
My guess is this picture is from a showcase they did in 1996