Sinai inscription 355 (S. 355)
This piece of sandstone was also found near the entrance to Mine L, but is now lost. It may be the top left corner of Sinai 350.
More details on these documents (Sinai 353 and 356) can be found in my published article: Brian E. Colless, The proto-alphabetic inscriptions of Sinai, Abr-Nahrain 28 (1990) 1-52, particularly 31-34.
Source: http://cryptcracker.blogspot.com.es/2007/10/ancient-sinai-horticulture-sinai.html
More details on these documents (Sinai 353 and 356) can be found in my published article: Brian E. Colless, The proto-alphabetic inscriptions of Sinai, Abr-Nahrain 28 (1990) 1-52, particularly 31-34.
Source: http://cryptcracker.blogspot.com.es/2007/10/ancient-sinai-horticulture-sinai.html