This one might top out at the highest price, it is the signature shape - right? (I know little about Ivarsson's,other than they get stratospheric prices)
A slight variation of the Peewit shape. Shape 30 for Stanwell, note the slight curve of the somewhat shorter shank; beautiful cross grain on this example. The same shape for Stanwell from the Scandia line (with a slightly less elegant stem),
Two of the others, the OLIFANT, and the UKELELE can be seen on pgs. 54-55 of the PipeDan catalog here, along with the PEEWIT on the previous page. Also, in terms of influence on other Danish pipemakers of the period, see the OLIFANT and this pipe for Larsen by Sven Knudsen.
http://www.ebay.com/itm/351797017702?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.danishpipemakers.com/pdf/pibedan_61_62.pdf