when was the last time the pirates recorded 3 shutouts in one week

The Pittsburgh Pirates had a record of 4-1 when pitching 3+ shutouts the week of September 27, 1976.

Interpreted as:

When was the last time the pirates recorded 3 or more shutouts in one week?

	TEAM	WEEK	REC	SHO	W%	G	W	L	ERA	SO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Pirates	9/27/1976 - 10/3/1976	4-1	3	.800	5	4	1	0.40	23	1	45.0	30	2	2	1	7	0	0	166	1	4.60	1.40	3.29	0.20	13.9	4.2	0.82	.215	0.40	6.00
2	Pirates	5/31/1965 - 6/6/1965	5-2	3	.714	7	5	2	2.00	42	1	63.0	45	14	15	2	13	4	0	251	4	6.00	1.86	3.23	0.29	16.7	5.2	0.92	.226	2.14	6.43
3	Pirates	8/20/1962 - 8/26/1962	7-3	4	.700	10	7	3	2.45	56	3	88.1	72	24	29	4	26	0	0	356	2	5.71	2.65	2.15	0.41	15.7	7.3	1.11	.252	2.95	7.34
4	Pirates	7/28/1958 - 8/3/1958	6-1	3	.857	7	6	1	1.48	40	2	61.0	52	10	11	2	11	0	1	237	2	5.90	1.62	3.64	0.30	16.9	4.6	1.03	.272	1.62	7.67
5	Pirates	9/11/1933 - 9/17/1933	4-2	4	.667	6	4	2	0.00	13	0	54.0	39	0	16	0	10	1		207	0	2.17	1.67	1.30	0.00	6.3	4.8	0.91	.213	2.67	6.50
6	Pirates	7/27/1931 - 8/2/1931	5-2	4	.714	7	5	2	0.00	14	1	63.0	53	0	17	0	15	0		250	1	2.00	2.14	0.93	0.00	5.6	6.0	1.08	.240	2.43	7.57
7	Pirates	8/18/1930 - 8/24/1930	7-1	3	.875	8	7	1	0.00	16	0	71.0	56	0	15	1	11	0		272	0	2.03	1.39	1.45	0.13	5.9	4.0	0.94	.225	1.90	7.10
8	Pirates	8/28/1922 - 9/3/1922	6-2	3	.750	8	6	2	0.00	19	1	74.0	67	0	26	4	17	1		297	2	2.31	2.07	1.12	0.49	6.4	5.7	1.14	.246	3.16	8.15
9	Pirates	6/16/1919 - 6/22/1919	6-1	3	.857	7	6	1	0.00	35	2	65.0	54	0	22	1	12	2		261	3	4.85	1.66	2.92	0.14	13.4	4.6	1.02	.251	3.05	7.48
10	Pirates	4/23/1917 - 4/29/1917	4-2	3	.667	6	4	2	0.00	23	0	55.0	38	0	15	2	23	1		225	1	3.76	3.76	1.00	0.33	10.2	10.2	1.11	.205	2.45	6.22
11	Pirates	8/2/1915 - 8/8/1915	3-4	3	.429	7	3	4	0.00	37	0	63.0	54	0	22	0	15	2		255	0	5.29	2.14	2.47	0.00	14.5	5.9	1.10	.269	3.14	7.71
12	Pirates	5/31/1915 - 6/6/1915	3-2	3	.600	5	3	2	0.00	20	0	45.0	29	0	10	0	10	0		167	1	4.00	2.00	2.00	0.00	12.0	6.0	0.87	.212	2.00	5.80
13	Pirates	9/23/1912 - 9/29/1912	4-1	3	.800	5	4	1	0.00	27	0	45.0	25	0	9	0	14	0		168	0	5.40	2.80	1.93	0.00	16.1	8.3	0.87	.197	1.80	5.00
14	Pirates	8/8/1910 - 8/14/1910	6-0	3	1.000	7	6	0	0.00	23	1	67.0	57	0	14	1	11	4		254	0	3.09	1.48	2.09	0.13	9.1	4.3	1.01	.260	1.88	7.66
15	Pirates	9/20/1909 - 9/26/1909	6-0	3	1.000	6	6	0	0.00	21	0	54.0	37	0	11	0	12	2		207	0	3.50	2.00	1.75	0.00	10.1	5.8	0.91	.215	1.83	6.17
16	Pirates	8/23/1909 - 8/29/1909	6-2	3	.750	8	6	2	0.00	22	1	70.0	52	0	16	0	15	1		266	1	2.83	1.93	1.47	0.00	8.3	5.6	0.96	.228	2.06	6.69
17	Pirates	8/31/1908 - 9/6/1908	7-2	3	.778	9	7	2	0.00	25	0	81.0	62	0	26	0	30	5		329	1	2.78	3.33	0.83	0.00	7.6	9.1	1.14	.230	2.89	6.89
18	Pirates	6/8/1908 - 6/14/1908	4-2	3	.667	6	4	2	0.00	12	0	52.0	42	0	15	2	14	4		209	0	2.08	2.42	0.86	0.35	5.7	6.7	1.08	.226	2.60	7.27
19	Pirates	9/24/1906 - 9/30/1906	6-4	5	.600	10	6	4	0.00	55	0	79.2	68	0	29	0	19	1		317	3	6.21	2.15	2.89	0.00	17.4	6.0	1.09	.281	3.28	7.68
20	Pirates	5/21/1906 - 5/27/1906	5-1	4	.833	6	5	1	0.00	23	0	54.0	47	0	9	1	14	0		205	0	3.83	2.33	1.64	0.17	11.2	6.8	1.13	.275	1.50	7.83
21	Pirates	5/23/1904 - 5/29/1904	4-3	3	.571	7	4	3	0.00	13	0	62.0	54	0	22	0	13	0		245	1	1.89	1.89	1.00	0.00	5.3	5.3	1.08	.247	3.19	7.84
22	Pirates	6/1/1903 - 6/7/1903	5-1	5	.833	6	5	1	0.00	18	0	51.0	43	0	10	1	8	2		196	0	3.18	1.41	2.25	0.18	9.2	4.1	1.00	.251	1.76	7.59
23	Pirates	8/4/1902 - 8/10/1902	5-1	3	.833	6	5	1	0.00	20	0	49.2	41	0	14	0	7	2		159	0	3.62	1.27	2.86	0.00	12.6	4.4	0.97	.315	2.54	7.43
24	Pirates	7/8/1901 - 7/14/1901	6-1	3	.857	7	6	1	0.00	24	0	71.0	59	0	12	1	10	2		270	0	3.04	1.27	2.40	0.13	8.9	3.7	0.97	.249	1.52	7.48
25	Pirates	6/10/1901 - 6/16/1901	6-1	3	.857	7	6	1	0.00	24	0	59.0	45	0	12	0	5	0		222	0	3.66	0.76	4.80	0.00	10.8	2.3	0.85	.233	1.83	6.86