ASSESSMENT OF THE STRENGTH AND COIN VALUES OF SOME SELECTED NIGERIA METALLIC COINS

Wuritka, Enoch Gotring

Department of Industrial Design

Abubakar Tafawa Balewa University, Bauchi.

Email- wuritka.enoch@yahoo.co.uk

ABSTRACT
The purpose of the study was to provide assess a complete guide, via slating the criteria to be use as guide for authorities that guarantee coin contents. This material is specially written for guidance leading to standard coin design. The rigorous assessment was  undertaken to demonstrate integral reasons for the rejection of the Nigerian coins by her collectors, following the issuance of the 50 Kobo 1 Naira and 2 Naira coins on the 28th February 2007 by the Central bank of Nigeria. This research work goes through all the criteria, necessary to pin point the major factors accompanying the coins’ present status. Considerably, the qualities and strength of a coin determines its face-value that determines its gross-value, and the magnitude of the gap between the two values, determines its standard. This reason has attracted a number of tests to accomplish this research for proper comprehension of the rejection. Qualitative analysis test, metallographic tests, strength calculation; design analysis, durability test (corrosion test), coin valuation and the immediate assessment of responses to interviews, are well known to those acquainted to coin design activities. Several finding the coin rejection was known to be encouraged by the banking industry as well as the sub-standard ness of the coins, with the exception of the 50 Kobo coin which was ailed to pass all tests carried out.