Σ Symbol Sigmas Made In Japan

[Sigmania]

A Sigma DT22 I once owned with flamed maple back & sides, maple three piece neck with diamond volute, and abalone inlay logo with SIGMA symbol (or sideways M). Purple label.

And here it is being sold again on Reverb....

https://reverb.com/item/3378921-sigma-dt-22-1972-natural-figured-maple

 

[Sigmania]

SDR11 or DR11 I once owned.

Paper label removed. Remnant shows purple Sigma symbol.

I believe this guitar was solid back & sides. Sounded amazing.

 

[Sigmania]

SDR9 or DR9 I once owned.

TRC, bound headstock, three piece back, snowflake markers.

SIGMA script and papaer label removed by previous owner.

Clouded finish.

Great player!

 

[Sigmania]

Interesting that this giutar has both logos.

Apparently 1978 was when the transition was made from the Sigma Greek symbol to the Martin type script?

Still has a TRC on the headstock



https://umgf.com/1978-japan-martin-sigma-grand-concert-size-gcs5-gu-t167697.html

 

[Sigmania]

One of my old guitars with the same label, Sigma logo on the headstock, but no TRC

No idea where this one fits in the timeline. 1979? 1979?

It's possible that there were different mfrs since this transition is not a smooth one? (New logo with the TRC and old logo without the TRC)

The snowflake markers, etc. are higher end than the 52SDR7S. Possibly different factory or production line.

 

[Sigmania]

Sigma Σ logo on a Snappy order guitar.

Plenty of Tokais were made for this store apparently. This is the first Sigma I have seen.

TOKAI 東海楽器 GAKKI Snappy/スナッピー 12弦 ... - Yahoo!オークション

 

[Sigmania]

1974 DR-7

Sigma acoustic guitar used

 

[Sigmania]

Aftermarket inlay

70's SIGMA - By CF MARTIN DR-7 ACOUSTIC 6 STRING GUITAR BRIDGE DOCTOR INSTALLED

 

[Sigmania]

Serial number looks like it starts with 75

70's SIGMA - By CF MARTIN - DR-7 ACOUSTIC 6 STRING GUITAR WITH Chip Board CASE

 

[Sigmania]

187953. GUITAR, Acoustic, Sigma, DM 5S.