3P Car Hoist Contactor Identification/replacement

[nick.trim]

My old man is restoring an old car hoist (German) shipped over from Europe years ago and the switchgear looks like it could use some attention.  The hoist is a 2 post screw type 3 phase hoist.  Have got a few photos of the contractors.  There are 4 of them (guessing 1EA for up and down on each side), unfortunately the labels are faded and there was a sticker over the rating section which is now unreadable doh (sorry about the quality).   Did not get a photo of the motor nameplate but they are relatively small maybe 2.2kW from memory, cant check easily as he lives 2hrs away. 

Does anyone recognize the logo on the contactor so I can try to dig up some specs? They are probably 30 years old and haven’t been able to find anything under DL06a.  Looking to source replacement contactors and get a sparky mate to replace them.  Hoping someone can recommend some reasonable price/quality contactors to use.