Cropped image of HP Nielsen from the only known extant photo of the <a href="https://en.wikipedia.org/wiki/Merle_1910_Biplane" class="extiw" title="w:Merle 1910 Biplane">w:Merle 1910 Biplane</a>, built in 1910 for Adrian J Merle by Hans Peter Nielsen. Taken at Nielsen's machine shop at 2254 Santa Clara, Ave, Alameda CA.Original image author unknown, date of photographer death unknown. Fair use of original image claimed as a unique historical image. This is one of very few known photos of Hans Peter Nielsen, notable for designing and building the first aeroplane in Alameda, CA.
Unknown author<span style="display: none;">Unknown author</span>
1910
The Alameda Journal, 1994-12-09