[Yaesu] FT 1000 : Date of manufacture?

[Barry Kirkwood]

Greetings!
I am new to this reflector.
questions:
1. FT1000  serial: OHO70280.
Does this identify date of manufacture?

2. Can one determine if main rx 3rd if optional filters are fitted without
opening rig?

3. Likewise for XF-455MC sub rx narrow filter?

thanks es 73

baz

end
Barry Kirkwood PhD ZL1DD
Signal Hill Homestay
66 Cory Road
Palm Beach
Waiheke Island 1240
NEW ZEALAND
www.waiheke.co.nz/signal.htm