M retailer is for...?

This is a one-off, original pen and ink drawing from Part 2 of my graphic novel, The Ghost Carp (also available here). Indian ink and wash, with red watercolour highlights, on 300gsm watercolour paper. The drawing shows Abe with his dog, Delilah, and is part of retailer the chapter illustrating an alphabet found in the urban river. This is the actual artwork, not a print, so there is only one.