when i received this plate i immediately noticed it looked quite odd. the sand cast Finnish on the back is nothing like ive ever seen on period examples. but could potentially be polished off. after that i noticed they took the description of pewter like alloy quite broad. i would have expected this to be made out of Britannia metal or something alike which is indeed like pewter but harder and contains antimony instead of lead. but now it was not. even worse this plate is not even made of any tin containing alloy its made out of a aluminium allow which is off course completely non period.
on the better side of things
the plate is very robust and heavy and will not likely be damaged easily
the weight however makes it less suitable for camping