On 12 Feb, 12:46, "David WE Roberts" wrote:
Just bought some nice big maps (some from OS and one from Lidl)

I have a number of similar things to these (corporate propaganda from
the old office), sat in the workshop stacks and awaiting recycling.
They were made by sandwiching 2mm layers of clear rigid plastic (PVC,
by the look of it) with 2mm rigid white PVC. There's no glue, sealing
or framing involved, just half-a-dozen metal screw clamps around the
edge, which were also used for their suspension wires.