I have been shown five so-called "authentic" Maunder crests (not coats-of-arms). Above are three of them. I have been told that the first is actually the crest of Sir Charles Marcus Mander (not Maunder) and I was told that Sir Charles was created a baronet on 8th October 1911. The crest shown to me was made by a "family heritage research company" in NSW, Australia.
More on this family can be found on the website of Sir Nicholas Mander, who is mentioned below. His Mander family history is at: http://www.owlpen.com/mander-history.shtml.
Sir Nicholas Maunder, a son of Sir Charles Marcus Mander contacted me and said: "On visiting your site I find there a picture of my coat of arms (not a crest) as granted by the Heraldic College to the descendants of Charles Benjamin Mander and Samuel Small Mander. You do not represent the ‘crest’ of my father, Sir Charles Marcus Mander, third baronet. As a baronet his armorial achievement has the helmet facing and open, with the baronet’s Bloody Hand in pretence. He was not created a baronet in 1911; that honour was given to my great grandfather, Sir Charles Tertius Mander, who died in 1929.
"I am no heraldic expert, though my researches have taken me to medieval heraldry and I do possess in the archives here our own patents. There are several good heraldry sites on the web. A coat of arms consists of various elements derived from the armour of a medieval knight: they include the crest (which is the bit on top of the helmet, probably made of boiled leather or wood in the medieval period), mantling, helm, escutcheon or shield (most importantly), and in the case of grander folk, the supporters. A motto is somewhat optional. Many noble families also had (and have) ‘badges’ and banners.
"The grant of arms has long been strictly regulated in European countries, controlled by the Heralds (in England under the Earl Marshall), and arms are hereditary in tail male, with appropriate ‘differences’ given to different sons, and sons of sons, etc. As such, they were a mark of ‘nobility’ in many countries, but not always. You only have a crest or coat of arms if you have a right to one under the herald’s patents. Many people acquired them ‘unlawfully’ by ancient usage, and registered them much later, often at the herald’s ‘visitations’ around the shires and counties. But there is nothing to stop anyone applying for a coat of arms, and many corporate and civic organisations commonly do so today, as well as private individuals. As far as I am aware, ours is the only Mander coat of arms registered with the English College of Heralds, although an early Mander coat of arms, from which ours seems to derive, occurs in Toddenham church, Gloucestershire, from memory about 1690-1700. I understand that that coat of arms is ‘unknown’ in the English Heraldic College, (but it was used recently by D’Arcy Mander in his bookplate of the copy of his ‘March on Rome’ given to me shortly before he died, so it may have been registered fairly recently)."
And while we are on the subject of family crests: