You are here:

Acoustic Guitars/Japanese guitar dating systems


QUESTION: Hi Kevin was just wondering if you have any information on how to date a guitar from Japan pre-1960.Cheers Nick.

ANSWER: Hi Nick. I guess my 1st question is how do you know it is pre 1960? Is it acoustic or electric, spanish or classical style? send me a couple pictures, complete front and back and tellll me the brand and we will go from there. Cheers, Kevin

---------- FOLLOW-UP ----------

classical acoustic guitar
classical acoustic gui  

classical acoustic guitar
classical acoustic gui  
QUESTION: Hi,Kevin here are the pictures you requested its a classical guitar.Regards Nick.

Shiro was made by he Aria company in the are some links to help you educate yourself:

Hope this'll have to do some digging but by visiting these sites you'll get a pretty good picture of what you have....  

Acoustic Guitars

All Answers

Answers by Expert:

Ask Experts


Kevin Dunham


Sigma by Martin guitars, Vintage Asian Import Guitars, acoustic guitars, american guitars, vintage music gear and vinyl record albums


I am a scholar and researcher of vintage Asain Import guitars and my area of expertise is Sigma by Martin fretted instruments imported by C.F. Martin & Co. from 1970-2007. I have been compiling materials and studying Sigma since 2008.

I have my own website,, a blog, Sigma Martin Memo's, I am a consultant on the Vintage Sigma Guitars Facebook page and am an editor of the Sigma Guitars Wikipedia page. I am also writing a book on the sigma line and have just returned from MArtin in NAzareth where I was granted access to and permisiion to reproduce Sigma by MArtin materials by Dick Boak, Archivist at Martin. Martin customer service representatives now refer Sigma by Martin inquiries that they cannot answer to me.

My book propsal is currently under review by Hal Leonard Performing Arts Publshing group and an article I wrote for Vintage Guitar Mazine is under advisement.

Studied at Linn Benton Community Collage in Albany Oregon and Marylhurst University in Portannd, Oregon. I have been a lifelong musician and student of guitars and am a guitar tech.

Awards and Honors

©2017 All rights reserved.