Blades for easel

I have stumbled on a nice easel, made by Pelling and Cross, with raised letters RRB in it, a 16x20 easel,

but no masking blades. If anybody has a source for replacement blades, a million thanks for the info, and if you own such,

a deal can be made.

photon beard easels(in the UK) have rrb embossed in the top left corner.
I beleive they have recently stopped production of easels but you could try them for spares or where they sourced parts from.

http://www.photonbeard.com/