Set of six Monteith's Beer cardboard Coasters. 

The cardboard coasters are round, with a black printed on white background advertising logo on one side (see 1st & 2nd photos) "Monteith's, Brewed for right now since 1868", and the same logo printed in white on a background on the opposite side (see 3rd & 4th photos).

The coasters measure 9.6cm (3 3/4") dia..

I have other drinks coasters listed and am happy to combine postage.