中华民国所铸袁世凯像背嘉禾壹圆，俗称“袁大头”，在正式开铸银币前，同样有用铜冲压试机这一过程，其试机结果称为试机样币。“初始试铸币”—是指任何一款机制币，一切铸币工作已臻妥善，奉批开始铸币“后”所产出。
“初始试铸币”产出后，经过检视，发现缺点，微调、改正、修图，再重新铸造，达可呈上御览核批的阶段，该批币就称为“试铸样币”。之后，还有报审“呈报样币”阶段，就是逐一向上报审批通过，之后批量生产流通的银币。而铜试机样币，非正铸品，多在冲压出来后销毁之，但是小有一些遗存下来，然其却是收藏的珍贵品种。试铸币存世量极少，流传到民间的更少。
此钱币正面图案是袁世凯的侧面像，在头像的上方是“中华民国三年”，背面的图案是中间汉字“壹圆”周围环嘉禾纹饰，钱币铜质精良，形制规整，十分精致美观，局部略有磨损,试铸币，无流通于市场使用，因为第一次铸造，用银改为铜，铜水冷却后由机器铸压而成，所以试铸币是当世的完成品样品，是后续铸银币的对照品，此币色泽光鲜，品相优异，包浆自然，纹饰深浅适度，具有极高的艺术鉴赏和收藏价值。
The statue of Yuan Shikai, also known as "Yuan Datou", was minted in the Republic of China with a golden grain on its back. Prior to the official minting of silver coins, a copper stamping test machine was also used, and the result of the test machine was called the prototype coin. "Initial trial coinage" - refers to the production of any mechanism coin after all minting work has been completed and approved to start minting.
After the initial trial coins were produced, upon inspection, defects were discovered, and fine adjustments, corrections, and revisions were made to the drawings before being re minted. This batch of coins reached the stage of being submitted for review and approval by the imperial court, and is known as the trial coins. Afterwards, there is also the stage of "submitting sample coins" for approval, which involves submitting and approving silver coins one by one, and then mass producing and circulating them. However, copper prototype coins, which are not genuine castings, are often destroyed after stamping, but some have survived, yet they are precious collectibles. The number of trial mints in existence is extremely small, and even fewer have been passed down to the public.
The obverse design of this coin is a profile portrait of Yuan Shikai, with "Three Years of the Republic of China" above the portrait. The reverse design features a Chinese character "One Round" surrounded by a golden grain decoration. The copper quality of the coin is excellent, with a regular shape and exquisite beauty. There is slight wear and tear in some parts. The trial coin was not circulated in the market. Because it was first minted, silver was changed to copper, and the copper was cooled and pressed by a machine. Therefore, the trial coin is a current sample of the completed product, which is a reference for subsequent silver coins. The color of this coin is bright, the appearance is excellent, the paste is natural, and the depth of the decoration is moderate. It has extremely high artistic appreciation and collection value.
