Imperial Credit Plaques

[sburchett]

Firstly, let me apologize if this is answered elsewhere on these forums; I searched and found nothing, but that means little, so please link me to the appropriate post and, perhaps, let me know what term or terms I should have searched on to get that result.

I found mention in The Great Rift, Adventure 1 the phrase "Imperial credit plaques". Is the word "plaques" referring to standard Imperial currency, or, rather, some other, more durable form of the credit.

I had never heard the term "plaques" used in reference to currency.

Thanks in advance for whatever aid I might find here!

sTiVo