釧路 300 の 23-34 (Ni-San 34) Japanese Plates

Plate content as follows:

• Region: 釧路 (Kushiro, Hokkaidō)
• Vehicle class: 300 (regular-size passenger vehicle)
• Category: Private owner (hiragana の)
• Registration number: 23-34

Now with the actual numbers 23 -34.

2 is pronounced “ni”

3 is pronounced as “san” 

23 or ni-san combined is identical to the pronunciation of Nissan. 34 considering the breakdown of the plate contents could be a privately owned passenger vehicle such as a Skyline.

Could this really have been fitted to a Nissan R34 Skyline during its life in Japan? The style of plate suggests it was issued anytime between the 1980s to 2000. R34 GTR was produced between 1999-2002.   

Searching the Web for something that is at least 25 years ago now is impossible. 

You be the judge. What’s it worth to a minimum $250,000AUD Skyline GTR owner?