No. Unknown : Built c1890 : 6NHP (Image)
No. 2420 : Built 1898 (Image)
No. 2506 : Built c1900 : 6NHP (Image)
No. 2665 : Built c1903 (Image)
BROWN & MAY LTD.
Devizes, Wiltshire.
No. 2700 : Built 1878 : 7NHP (Image)
No. 6226 : Built 1899 : 10NHP (Image)
CHARLES BURRELL & SONS LTD.
St Nicholas Works, Thetford.
No. 1475 : Built 1889 : 8 NHP (Image)
No. 2363 : Built 1900 : 10NHP (Image)
DAVEY PAXMAN & CO. LTD:
No. 11692 : Built 1900 : 8NHP (Image).
EDDINGTON & STEEVENSON
New Street Iron Works, Chelmsford.
No.36 : Built 1910 : 7NHP (Image).
FARMERS FOUNDRY
No. 36 : Built 1910 : 7NHP (Image)
No. 201 : 1870 : (Image)
RICHARD GARRETT & SONS LTD.
No. 34193 : Built 1924 (Image)
RICHARD HORNSBY & SONS
No. 3444 : Built 1878 : 4nhp (Image)
MARSHALL, SONS & CO.LTD.
Britannia Works, Gainsborough, Suffolk.
No. 21216 : Built 1892 : 10NHP (Image)
No. 29101 : Built 1898 : 12NHP (Image)
No. 50595 : Built 1908 : 6NHP (Image)
No. 50653 : Built 1908 : 5NHP (Image)
No. 57672 : Built 1911/12 (Image)
No. 69778 : Built 1916 : 12NHP (Image)
No. 70081 : Built 1916 : 12 NHP (Image)
No. 71725 : Built 1919 : 10NHP (Image)
No. 72531 : Built 1920 : 12 NHP (Image)
No. 79936 : Built 1925 : 5NHP (Image)
No. 87866 : Built 1936 : 10NHP (Image)
RANSOMES, SIMS & JEFFRIES LTD.
Ipswich, Suffolk.
No. 8613 : Built 1891 : 3NHP (Image)
No. 27185 : Built 1917 : 10NHP (Image)
No. 27271 : Built 1918 : 6NHP (Image)
No. 42019 : Built 1931 : 6NHP (Image)
No. 43030 : Built 1935 : 5NHP (Image)
No. 44068 : Built 1940 : 10NHP (Image)
ROBINSON & AUDEN LTD
No. 1003 : Built 1892 : 6NHP (Image)
RUSTON & HORNSBY LTD.
No.163864 : 1931 : 12NHP (Image)
No.173763 : 1935 (Image)
W. TASKER & SONS LTD
No. 1228 : 1898 : 7NHP (Image)
Wm. TUXFORD & SONS
No. 1238 : 1887 (Image)
E.YOUNGS.
Diss, Norfolk.
Very little is known about the history of E.Youngs. It is known that they were based at Diss in Norfolk and only build fourteen Portables in their time as manufacturers. Only one survives (Image) and is dated around 1910. It is located at the Bressingham Steam Museum (link)
The information contained on these pages has been obtained from various books and websites, which have neen linked where deemed appropriate.
The following individuals have also provided additional information:
Mike Dyson.
Adam Marriott
Hedd Jones.
Neil Williams.
Our thanks to everyone.