Scovill Mfg. Co. catalog,
1886, p.
86
This shutter looks like an alteration of their previous Prosch Instantaneous Shutter.
References:
Anthony's Photographic Bulletin, Vol. 15, No. 11, E. & H.T.
Anthony & Co. (New York, NY), November 1884, ads p. 6
The Photographic Times and American Photographer, Vol. XIV, No. 171
(New Series No. 51), J. Trail Taylor, ed., Scovill Mfg. Co., pub.,
NY, December 26, 1884, ads page 21
Illustrated Catalogue of Amateur Photographic
Equipments & Materials, E. & H.T. Anthony & Co. (New York, NY),
September 1885,
p. 33
Illustrated Catalogue of Amateur Equipments and Materials, E. &
H.T. Anthony & Co. (New York, NY), September 1886, p. 48
How to Make Photographs and Descriptive Price List,
Scovill Mfg. Co. (New York, NY), distributed by
Andrew J. Smith (Providence, RI),
1886, p. 86
Scovill Manf'g Co. Catalogue Photographic Goods, June, 1887, David
Tucker & Co. (Buffalo, NY), June, 1887, p.141