The type Florence was originally a Canadian design by Northern Telecom. It was a development of the Contempra, which got a more compact body shell. The Contemprette, as this model was originally called, came onto the market in the early 80s with a rotary dial as well as with a touch tone key pad.
PTT only had the push button version in their range, in the colours white, brown and red. My specimen is an IDK-version (pulse dialling). According to my information PTT did not have the DTMF version in their product range.
At the time it cost nearly 100 guilders (€45).