CONTINUOUSWAVE

Q1: where is the HIN located on a 1984 GUARDIAN 22?

Q2: will the HIN on a 1984 GUARDIAN 22 be a metal plate?

Q3: will the HIN on a 1984 GUARDIAN 22 be embossed into the hull gel coat layer?

A2: Yes

A3: No

The FAQ has the answer to your initial question. Read at

FAQ Q2: Where is the hull identification number?
https://continuouswave.com/whaler/reference/FAQ/#Q2