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Look for the serial number in the neck pocket. Read the serial number. The first two digits indicate what week of the year the guitar was made, and the last two digits indicate the year the instrument was made. Take the guitar to a guitar shop, preferably one that sells vintage guitars, and inquire about dating the instrument if you can't find. Legible in the essay in ’60s Bizarre Guitars is a list of numbers which probably indicates amplifier availability in ’55, since the numbers are similar to those used to signify slightly later Teisco amps. These were the #30, #28, #17, #40, #6, #7, #5A and #5B.

Teisco World Serial Number / Date Chart Project (By Jimmy Noise / Aug 2012) What is the Teisco Serial Number / Date Chart? The chart is a list of model numbers going down the page and a list of serial numbers going across the page.

Guitar models have their corresponding serial numbers marked on the chart. Above the serial numbers is the estimated production dates for those serial. What Can the Chart Tell Us? The chart can provide a lot of information, such as the following; Determine when your Teisco was made based on the serial number; Identify what other guitars models were made when your guitar was made; Determine how many of each model was made; See how often each guitar was made; Determine which models are rare and which are common; Identify the sequence of when guitars were constructed; Estimate the production output of Teisco factory during the serial number era; Determine the total number of Teisco guitars that were made during the serial number plate era. There are some interruptions in the data for some of the above, but the accuracy is probably the best that will ever surface. The chart will be revised and expand as more information is discovered and confirmed.

The chart also gives us a direction on how to start to study each model and a reference between other models. Hence trends in production techniques and hardware used can be compared. A lot of information on this web site has been discovered from the trends in this chart.

How the Chart Came Into Existence The Teisco serial chart was reconstructed from serial numbers off Teisco guitars that have surfaced on the internet since 2007. The numbers were recorded from as many possible sources that could be found. It all begun with an eBay listing that stated “There might have been only 500 Spectrum 5 guitars ever made. Could be as many as 2000. No one really knows.” Someone wanted to know really badly.

(And at that time they didn't even have a Spectrum 5.) So what if someone recorded every spectrum 5 serial number they could find and see if it linked up? So the Teisco Serial / Date Chart project was started and several months of research later it became evident that some things did not link up. The numbers were all over the place.

From that point it was decided that all serials numbers from all the models needed to be collected. Then perhaps it could finally be determined exactly how many were made. Several searches were done on the internet to determine a complete list of Teisco models. The problem is that a lot of the models did not have any pictures. It was determined that some of the model numbers were not even Teisco models on those original lists. This project took years of research just to determine what was or was not a Teisco, and also, what each model looked like. As time went by, missing models were added and non Teisco models were removed.