Help With Scottish Hallmark

Hi All
I have a set of 6 tea spoons with the following hallmarks.
Duty Stamp, Date Letter for 1805, Standard Thistle Mark for Edinburgh and a Makers Mark MC.
My question is, there is no City Mark (three towers) next to the Standard Mark. Is this normal or could it mean somethink ?
Thanks for your help in advance.
Graeme Fowles.

This is perfectly normal for the period you mention.

Thank you for your prompt reply.
Graeme.