"Kuala Lumpur Type A - Back"
In my opinion, this is the nicest version. The front cover illustrates the Proton Satria and the details of the issues is printed at the back. The designer of this cover showed much details in his design. Although not sure about the quantity issued for this cover, it is still quite common and you still could obtain it from certain dealers."Kuala Lumpur Type B"
Type B design was a bit "rough". The printing seem to be using a ribbon type printer. However, nevertheless, it still illustrate a nice proton saga at the front of the cover.
"Ipoh Type C"
This cachet was created by a Ipoh stamp dealer (I believe you would have guess who). According to the dealer, only around 2,000 pieces of this were printed and made into FDC.
"Melaka Type C"
This is the Melaka version created by Mr. Tan, a stamp dealer from Melaka. As you can see, it is a simple version on blank envelope and design using the booklet skin. Mr Tan still have quite a number of stocks for this issue. If you wish to buy this version, you could try to search out Mr Tan ebay listing with the ebay id "winston6099".