The Family Crest
This is the Crest of the Neymeyers.
The Helmet is called “Stechhelm”. Literally that is “pierce helmet”, a better translation would be “pointed helmet”. This indicates a more middle-class origin. Probably somebody in the 17th or 18th century has developed it.
The griffon most likely stands for Baden.
Baden is a region in extreme south western Germany. For example in the crest of the German State Baden-Württemberg the griffon holding the crest symbolizes Baden.
The shield is a later gothic half round shield in red.
I'd be grateful for tidbilts who developed the crest and when. See therefore under
Contact.
Sources and further information:
Wikipedia
Heraldik-Wappen (German)
Münchner Wappenherold (German)
Deutsch