Magnifying Visors

What shops in London are likely to stock hand-held magnifiers?

Public Comments

1. Maplins, they do them, if you use the branch on the Tottenham Court Road, there's loads of other shops that should have them. BTW My eyesight is pony, and I've found a USB microscope for my PC is really handy, I use it to read impossibly small print and to take pictures of small items to be sold on eBay.
2. Possibly one of the stamp shops on the Strand
3. Maybe Staples or WH Smiths