[R-390] R-390 serial numbers question

[w4thq at cox.net]

Where are serial numbers stamped on R-390 receivers?  Are rubber stamped numbers 
on the panel under the metal tag location?  Does the chassis have stamped 
numbers like the modules?  I am awaiting delivery of an R-390 (non A) and it is 
the first one I will have.  Looking forward to trying it out soon.  I have had 
Collins S-line for years and always wanted the R-390's to round out my boat 
anchor experience. 
John  W4THQ