Any Info on my Spectrum II/ 215S

[Anonymous]

Okay, I recently bought a Sunn Spectrum II head and a 215 S Cabinet
the head has arrows on the knobs and 6550 tubes. theres no date anywhere on it, only a badge plate thing rivited on the back of the actual amp, that says "2110"  The Cab also has no date on it, but theres two Altec Lansing 421's in there.(8 Ohms each) One is actually a 421A and they both say "Bass Musical Instrument Speaker Via-Cone" on them. they have aluminum centre cones and an accordian like ring around the outside.
4 Ohms
160 Watts Rms
does anybody have any ideas what this is worth, or even how old it is?
sorry, my digital camera got stolen recently, so i don't have any pics.

[mackle5]

oops, sorry, i guess theres no EDIT button, lol.
anyways, the speakers say "Dia-Cone" not Via cone

[mackle5]

Okay, update.
I took the amp out of the box, and searched everywhere, but there is no date on it anywhere. theres a piece of that black macktack stuff, you know, the skin of the amp, over the holes where the voltage selector thing was. So I dunno what that means...probably nothing.

[Sunn_Tubeamp_Revival]

Check the very ends of the chassis (outside ends).  The dates were many times written on the ends.  Frequently, they were written underneath over toward the output transformer.  Colored grease pencils were used.  If there is no such writing, it will difficult to date the production of the chassis.  
You could get a close approximation by the date codes in the bias supply filter caps (if they are original).  But, will only indicate that it was sometime after that date code(usually labeled as the week and year, such as 2567, meaning the 25th week of 1967).  The stamped plate could indicate the production # of the amp, perhaps someone on the forum can decipher.

Regards,
Chuck